/Engine/Plugins/Interchange/Runtime/Source/Import/Public/Animation/InterchangeAnimationPayloadInterface.h
Get animation payload data for the specified payload key. It return an array ofFRichCurve(Rich curve are float curve we can interpolate) or array of "Step" curve or an array of Baked Transformations, depending on Type
[TFuture](API\Runtime\Core\Async\TFuture)< [TOptional](API\Runtime\Core\IO\TOptional)< [UE::Interchange::FAnimationPayloadData](API\Plugins\InterchangeCommonParser\FAnimationPayloadData) > > GetAnimationPayloadData ( const [FInterchangeAnimationPayLoadKey](API\Plugins\InterchangeNodes\FInterchangeAnimationPayLoadKey) & PayLoadKey, const double BakeFrequency, const double RangeStartSecond, const double RangeStopSecond ) const